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Author Topic:   Carb?
hoosierdaddy
Dirt Full Roller

Total posts: 58
posted March 05, 2002 06:00 PM
what is the best carb. for a 2300 with stock intake?(stock valves with DZ11 cam.)

AJ GARBE70
Dirt Maniac

Total posts: 200
posted March 05, 2002 11:18 PM
A 350 CFM HOLLEY CARB.

AJ GARBE70
Dirt Maniac

Total posts: 200
posted March 05, 2002 11:27 PM
ALSO WHAT SIZE TRACK

KWTracer
Dirt Freak

Total posts: 233
posted March 06, 2002 06:30 AM
What size track, head work? Probably a 350 or 500.

hoosierdaddy
Dirt Full Roller

Total posts: 58
posted March 06, 2002 05:02 PM
3/8 dirt, no head work. are there any stock carburetors that would run good that would be a lot cheeper than a holley.

KPLugnut
Dirt Freak

Total posts: 408
posted March 07, 2002 08:20 AM
Everyone above is right, in the end, you will spend much more time, effort, and money trying to modify an OEM style carb to make it
work as efficiently, and with as little maintenance as the Holley. For your application, I'd suggest the 7448 (350cfm) to start with, since your motor is basically stock.
They can be found used in many places, or if you have trouble finding an affordable one, just ask me. I have one in stock for less than you'd pay for a rebuilt stock carb.

Hope that helps,
KPLugnut

yabba48
Dirt Roller

Total posts: 17
posted March 07, 2002 08:56 AM
I USE A MOTORCRAFT 2 BARREL OFF A 302 . IT WORKS GOOD STOCK I RUN A 3/8 MILE TRACK. I PLACED 4 TH IN POINTS LAST SEASON WITH IT.

KPLugnut
Dirt Freak

Total posts: 408
posted March 07, 2002 11:29 AM
That is true, that the Motorcraft/Autolite 2bbls will also work well, but keep in mind, it's getting harder to find the 121 carbs and in some parts of the country, even the little 108's are rare.
They work well, when set up right, but are harder to set up right than a Holley, which was my point.
They also will accept Holley power valves, but jets are next to impossible, unless you get fancy like many builders and are able to install Holley jets. (we do).

FWIW, and JMHO,
KPLugnut

AJ GARBE70
Dirt Maniac

Total posts: 200
posted March 07, 2002 09:23 PM
I WILL SELL YOU A STOCK CARB 350 CFM IT WORKS GREAT ALL THE HOLES ARE PLUGED WITH JB WELD IT IS A HOLLEY I RAN IT LAST YEAR AND I STILL AM USEING IT I HAVE BOUGHT A RACING ONE NOW PM ME AND MAKE AN OFFER

yabba48
Dirt Roller

Total posts: 17
posted March 08, 2002 06:36 AM
kplugnut how did you get the holley jets to fit? i use stock jets. Do you have to make a fitting?

KPLugnut
Dirt Freak

Total posts: 408
posted March 08, 2002 08:31 AM
We make a bronze bushing that has the motorcraft threads on the outside and the Holley jet threads (1/4"x32)on the ID.
They are Loctite'd in, and allowed to set,
and we've never had a problem.

Hope that helps,
KPLugnut

KWTracer
Dirt Freak

Total posts: 233
posted March 23, 2002 07:40 AM
I'd like to point out, that if your having carb issues or questions, a little one on one conversation with an experienced professional on the subject is time well spent. I always thought blocking off that power valve and put on the biggest carb you can was the way to go. Not always the best decision. Earl Parker with parkercarburetion has personally helped me, basically with a little carb 101. And in the interest of equal opportunity, KP lugnut seems to be very knowledgable as well. Point is, there is alot of power to be found and driveability issues solved (even ones you didn't know you had) by minor changes and proper setup of your carb, and the guys that work with carbs for a living know how critical it is to have them set up right, and have the experience to set you up properly. Anyway, by contating one of these guys when you have a problem, you can save a BUNCH of time and headache by making changes when your not exactly sure what your doing.

KPLugnut
Dirt Freak

Total posts: 408
posted March 23, 2002 09:08 AM
Thanks so much for the kind words, KWTracer. You are very right, that it is quite important to spend the time learning about the little things every step of the way, not only with respect to carbs, but really with every other item in the engine.
I am flattered to be considered an expert, and applaud Earl Parker in all that he does for racers. We both do our best to help every single racer that comes our way. Speaking for myself, I actually get more satisfaction out of helping other racers win at any level than I ever did as a racer myself.
Just doing what we enjoy, hope everyone else does too.

Dayton Umholtz, owner
Kinetic Performance
"KPLugnut"

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